Changes in the Observed Trends in Extreme Temperatures over China around 1990
Changes in the Observed Trends in Extreme Temperatures over China around 1990
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DOI：
10.1175/jcli-d-11-00437.1
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发表时间：
2012-08
影响因子：
4.9
通讯作者：
L. Qi;Yuqing Wang
中科院分区：
文献类型：
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作者：
L. Qi;Yuqing Wang
摘要利用中国气象站逐日气温资料，分析比较了1960-89年和1990-2009年中国夏季和冬季平均气温和极端气温的线性变化趋势。结果显示，自20世纪90年代初以来，这些趋势发生了显着变化，特别是在冬季，这是先前确定的气候变化的信号。夏季平均气温和极端气温在1990年以前都表现为华中地区明显的降温趋势，华北和华南地区明显的升温趋势。1990年以后，中国各地的温度指数都显示出明显的变暖趋势，最大的趋势是在中国北方，达到4.47°C（10年）-1。华北地区冬季的四季平均气温和冷温指数在1960-89年有显著的增暖趋势，1990年以后有显著的降温趋势。青藏高原的变暖趋势明显增强...
AbstractBased on the daily temperature data from weather stations in China, linear trends of the seasonal mean and extreme temperatures in summer and winter are analyzed and compared for the periods of 1960–89 and 1990–2009. The results show prominent changes in those trends since the early 1990s, in particular in winter—a signal of climate shift as previously identified. The changes, however, are found to be strongly region dependent.In summer, both seasonal mean and extreme temperatures show a considerable cooling trend in central China and a warming trend in north and south China before 1990. After 1990 all temperature indices show significant warming trends throughout China with the largest trend up to 4.47°C (10 yr)−1 in north China. In winter in north China, with the most prominent warming trend during 1960–89, there is a significant cooling trend in both the seasonal mean temperature and the cold temperature indices after 1990. The warming trends over the Tibetan Plateau are substantially enhanced ...